This device is designed to be used with the GVP
Impact Vision 24 and was originally shipped with the CT or Pro version
of the card. It is similar to the Video Interface Unit / RGB Splitter
but also does Component Transcoding and has more outputs. The device is
designed to mix three different video sources with the amiga's native
video source, making it effectively a "Super Genlock". It can also be
driven under Scala MM400. There are six activity LEDs on the front of
the device. This what is called a transcoder. It changes video from one
format to another, such as composite to R/G/B, or componenet R-Y, B-Y,
and G-Y. S-VHS is another format, which is nothing more than baseband
video with full bandwidth chrominance information on a separate cable.
CVS stands for Composite Video Sync, the same as the usual baseband
video we all know. The Key output is the Alpha channel, which is used
with a video keyer. It is the signal that 'cuts the hole' for video
keys.